Waterproof cabinet shutter
By using an alternating upper and lower louvers and a guide vane design, combined with an exhaust fan, the waterproof cabinet louvers achieve efficient waterproofing and ventilation in harsh weather conditions, solving the problem of insufficient waterproofing in existing technologies. This design is suitable for outdoor communication and power control cabinets.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN TOSHIBA LOCOMOTIVE ELECTRIC EQUIP CO LTD
- Filing Date
- 2026-04-23
- Publication Date
- 2026-06-02
AI Technical Summary
Existing louvers are not waterproof enough when encountering strong winds and oblique rain, allowing raindrops to easily penetrate into the cabinet, affecting the equipment's lifespan and heat dissipation efficiency.
A waterproof cabinet louver is designed, which uses staggered upper and lower louvers, combined with air guides and an exhaust mechanism, to achieve efficient waterproofing and ventilation through a combination of passive waterproofing and active ventilation. It is particularly suitable for outdoor communication cabinets and power control cabinets.
It effectively prevents rainwater intrusion in severe weather while maintaining efficient heat dissipation, making it suitable for outdoor equipment with high protection levels and heat dissipation requirements.
Smart Images

Figure CN224319769U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of ventilation window technology for outdoor electronic equipment cabinets, and in particular to waterproof cabinet louvers. Background Technology
[0002] Outdoor communication cabinets, power control cabinets, and other electronic equipment cabinets need to operate stably for extended periods in complex climatic environments. To ensure the normal operation of the equipment inside, heat must be effectively dissipated. Therefore, the cabinet enclosure usually needs to be equipped with ventilation openings and louvers. The basic function of louvers is to allow air circulation while preventing rainwater from directly entering.
[0003] Currently, most common cabinet louvers use a series of inclined blades. Their waterproof principle mainly relies on the tilt angle of the blades, which allows raindrops falling vertically to slide off the surface of the blades, while air can circulate through the gaps between the blades.
[0004] In terms of waterproofing, ordinary louvers are mainly designed for vertical rainfall. When encountering strong winds accompanied by slanting wind and rain, raindrops can easily penetrate the gaps between the blades and enter the cabinet under the force of the wind. Although the waterproofing effect can be improved by reducing the blade spacing, increasing the blade tilt angle, or using a multi-layer staggered blade design, the complex and circuitous air ducts designed in pursuit of waterproofing will significantly increase the airflow resistance, resulting in a significant reduction in the efficiency of natural convection heat dissipation. Heat is easily accumulated inside the cabinet, affecting the lifespan and reliability of the equipment.
[0005] In other words, existing technologies have the following technical problems: ordinary louvers are not waterproof enough when exposed to strong winds and oblique rainfall. Therefore, a waterproof cabinet louver is proposed to address the above issues. Summary of the Invention
[0006] This application provides a waterproof cabinet louver to solve the problem that the existing louvers are not waterproof enough when encountering strong winds and oblique rainfall.
[0007] According to one aspect of this application, a waterproof cabinet louver is provided, comprising:
[0008] The frame component has several louver components on its inner side, and the louver components are arranged vertically at equal intervals.
[0009] The louver assembly includes an upper louver and a lower louver, which are arranged alternately.
[0010] An exhaust mechanism is also fixedly connected to one side of the frame component.
[0011] Furthermore, one end of the upper half of the blade is arranged at an angle downwards, and a semi-circular guide vane is fixedly installed at the other end of the upper half of the blade.
[0012] One end of the lower half is arranged at an angle upwards, and the other end of the lower half is fixedly equipped with an arc-shaped guide vane.
[0013] Furthermore, the semi-circular guide vanes and the arc-shaped guide vanes are arranged alternately.
[0014] Furthermore, a flow guide hole is provided at the lowest point near the root of the arc-shaped guide vane in the lower half of the leaf.
[0015] Furthermore, a rubber connecting piece is fixedly connected to one end of the bottom surface of the lower half of the leaf, and a baffle plate is fixedly connected to the other end of the rubber connecting piece. An arc-shaped front end is fixedly provided at the bottom end of the baffle plate.
[0016] Furthermore, the exhaust mechanism includes a shroud and an exhaust fan. An exhaust fan is fixedly installed at one end of the shroud to actively exhaust hot air from inside the cabinet.
[0017] Furthermore, an adjustment mechanism is also provided at the louver assembly, which includes a fixed sleeve, a support guide rod, and an electric push rod; fixed rods are fixedly connected to both sides of the fixed sleeve;
[0018] A support guide rod is slidably connected to the fixed sleeve, and the support guide rod is fixedly connected to one end of the lower half-leaf.
[0019] One end of the support guide rod is fixedly connected to the output end of the electric push rod.
[0020] Furthermore, an arc-shaped contact block is fixedly connected to the upper surface of the upper half of the leaf.
[0021] Furthermore, the interior of the shield is equipped with magnetic sheets, and the arc-shaped contact blocks are made of magnetic metal material.
[0022] In order to solve the technical problems of ordinary louvers in the prior art that may still leak water under severe wind and rain, and the resulting low heat dissipation efficiency of the cabinet due to the sacrifice of ventilation area, this application designs a louver that combines passive waterproofing and active ventilation. The overall technical solution formed by the combination of unique louver components and exhaust mechanism can achieve efficient ventilation and heat dissipation on non-rainy days and automatically switch to efficient waterproof mode on rainy days. At the same time, the special combination design of the upper and lower halves can effectively collect and discharge the small amount of intruding moisture, and can work in conjunction with the exhaust fan. It is particularly suitable for outdoor communication cabinets, power control cabinets and other equipment with high protection and heat dissipation requirements. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the overall structure of one embodiment of this application;
[0025] Figure 2 This is a side perspective view of one embodiment of the present application;
[0026] Figure 3 This is a schematic diagram of the structure of a louver assembly according to an embodiment of this application;
[0027] Figure 4 This is one embodiment of the present application. Figure 3 A magnified structural diagram of point A;
[0028] Figure 5 This is a schematic diagram of the adjustment of a louver assembly according to an embodiment of this application;
[0029] Figure 6 This is a schematic diagram of the structure of a flow guide orifice according to an embodiment of this application;
[0030] Figure 7 This is a schematic diagram of the structure of an adjustment mechanism according to an embodiment of this application.
[0031] In the diagram: 1. Frame assembly; 101. Mounting sleeve; 102. Window frame; 2. Louver assembly; 201. Upper louver; 2011. Semi-circular guide vane; 202. Lower louver; 2021. Arc-shaped guide vane; 2022. Guide elongated hole; 203. Rubber connecting piece; 204. Baffle plate; 205. Arc-shaped front end; 206. Arc-shaped contact block; 3. Exhaust mechanism; 301. Fan cover; 302. Exhaust fan; 4. Adjustment mechanism; 401. Fixing rod; 402. Fixing sleeve; 403. Support guide rod; 404. Electric push rod. Detailed Implementation
[0032] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0033] Please see Figure 1 and Figure 2 As shown, the waterproof cabinet louvers include:
[0034] The frame component 1 has several louver components 2 arranged vertically at equal intervals on its inner side to form an air duct for airflow.
[0035] The louver assembly 2 includes an upper half-leaf 201 and a lower half-leaf 202, which are arranged alternately.
[0036] An exhaust mechanism 3 is also fixedly connected to one side of the frame component 1 to actively enhance air circulation inside the cabinet and improve heat dissipation efficiency.
[0037] This application presents a unique integrated technical solution formed by the combination of louver assembly 2 and exhaust mechanism 3. It can achieve efficient ventilation and heat dissipation in non-rainy weather and automatically switch to efficient waterproof mode in rainy weather. At the same time, the special combination design of upper half 201 and lower half 202 can effectively collect and discharge the small amount of intruding moisture and can work in conjunction with the exhaust fan. It is particularly suitable for outdoor communication cabinets, power control cabinets and other equipment with high protection level and heat dissipation requirements.
[0038] In one specific embodiment of this application, see [reference]. Figure 2 and Figure 3 As shown, frame component 1 includes mounting sleeve 101 and window frame 102.
[0039] An installation sleeve 101 is fixedly installed on the outer side of the window frame 102, which is used to install and fix it to the ventilation opening of the outdoor cabinet by bolts, so as to realize the quick installation of the louver on the cabinet.
[0040] The upper half leaf 201 is fixedly connected to the window frame 102, and the lower half leaf 202 contacts the inner wall of the window frame 102, forming a contact fit that can slide up and down.
[0041] In a preferred embodiment of this application, see [reference] Figure 3 and Figure 4 As shown, one end of the upper half-blade 201 is arranged at an angle of 15-30 degrees downwards, and a semi-circular guide vane 2011 is fixedly installed at the other end of the upper half-blade 201.
[0042] One end of the lower half-leaf 202 is arranged at an angle of 10-25 degrees upward, and the other end of the lower half-leaf 202 is fixedly provided with an arc-shaped guide vane 2021.
[0043] By using this technical solution, the opposite tilt angles of the upper and lower blades can ensure that most of the raindrops coming from the front will first hit the tilted surface of the upper blade 201 and be guided away during windy and rainy weather. The small number of water droplets that bypass or splash will be guided by the semi-circular guide plate 2011, changing their intrusion direction, thus achieving the waterproof effect of separating and blocking rainwater.
[0044] Furthermore, such as Figure 4 As shown, the semi-circular guide vane 2011 and the arc-shaped guide vane 2021 are arranged alternately to form an "S"-shaped narrow slit air duct.
[0045] With this technical solution, when raindrops or water flow that cannot be completely guided enter the end area of the upper half leaf 201, the flow direction of the water droplets or water film can be deflected by nearly 180 degrees by the arc surface of the semi-circular guide plate 2011, and guided to the concave area of the arc-shaped guide plate 2021 above the front end of the lower half leaf 202. Since the lower half leaf 202 is arranged at an upward angle, it can effectively receive and collect water droplets from above, thereby preventing water droplets from dripping vertically or splashing directly into the cabinet, thus playing a waterproof role.
[0046] Furthermore, in order to drain the water collected in the recess of the arc-shaped guide vane 2021 in a timely manner, a guide hole 2022 is provided at the lowest point of the lower half of the leaf 202 near the root of the arc-shaped guide vane 2021 to guide the collected water out.
[0047] As a preferred technical solution, in order to reliably collect and redirect the water flowing out of the guide hole 2022 and prevent it from dripping into the cabinet after flowing down the back of the lower half leaf 202, one end of a rubber connecting piece 203 is fixedly connected to the bottom surface of the lower half leaf 202, and the other end of the rubber connecting piece 203 is fixedly connected to a baffle plate 204, forming a suspended water guide plate structure that can be rotated around the connection. The bottom end of the baffle plate 204 is fixedly provided with an arc-shaped front end 205, which is used to contact the upper surface of the lower half leaf 201 in a natural hanging state to form a water guide channel.
[0048] When water flows out and drips from the guide hole 2022, it will come into contact with the upper surface of the baffle 204, which will serve to receive and guide the water. The water will flow along the surface of the baffle 204 to the arc-shaped front end 205 at its bottom, and finally be guided to the surface of the upper half of the adjacent leaf 201 below, and discharged out of the window. This achieves the guidance and final discharge of any trace amounts of water that may intrude, resulting in good waterproof reliability.
[0049] In one specific embodiment of this application, see [reference]. Figure 5As shown, the exhaust mechanism 3 includes a shroud 301 and an exhaust fan 302. The shroud 301 is fixedly connected to the window frame 102 to form an exhaust duct. An exhaust fan 302 is fixedly installed at one end of the shroud 301 to actively exhaust the hot air inside the cabinet.
[0050] With this technical solution, when the temperature inside the cabinet rises or forced cooling is required, the exhaust fan 302 can be activated to actively exhaust the hot air inside the cabinet through the louvers, thereby increasing the heat dissipation effect.
[0051] Furthermore, in order for the blinds to be adjustable according to weather conditions, see [reference needed]. Figure 6 and Figure 7 As shown, an adjustment mechanism 4 is also provided at the louver assembly 2 for adjusting the vertical spacing between adjacent louver assemblies 2. The adjustment mechanism 4 includes a fixed sleeve 402, a support guide rod 403, and an electric push rod 404.
[0052] Both sides of the fixed sleeve 402 are fixedly connected to one end of the fixed rod 401, and the other end of the fixed rod 401 is fixedly connected to the side of the window frame 102 to form a stable mounting base.
[0053] A support guide rod 403 is slidably connected to the fixed sleeve 402, and the support guide rod 403 is fixedly connected to one end of the lower half leaf 202.
[0054] One end of the support guide rod 403 is fixedly connected to the output end of the electric push rod 404. The electric push rod 404 is fixedly installed at the bottom side of the window frame 102 and is used to drive the support guide rod 403 to slide up and down along the fixed sleeve 402, thereby driving all the lower half leaf 202 connected to it to rise and fall synchronously.
[0055] With this technical solution, when enhanced ventilation is required, the electric push rod 404 is retracted, which pulls the support guide rod 403 downward, thereby causing all the lower half blades 202 to descend as a whole. This increases the gap between the upper half blade 201 and the lower half blade 202, transforming the original "S"-shaped meandering air duct used for waterproofing into a nearly straight and wide air duct. This is particularly suitable for maximizing natural ventilation and heat dissipation in sunny weather. At the same time, the positive pressure formed inside the cabinet by the exhaust fan 302 when it is working can also prevent external dust or rainwater from entering, further protecting the cabinet safety in ventilation mode.
[0056] Furthermore, in order to simultaneously increase the exhaust duct size while increasing the blade spacing to adjust ventilation, and to prevent the baffle 204 from obstructing airflow, see [reference needed]. Figure 5 As shown, an arc-shaped contact block 206 is also fixedly connected to the upper surface of the upper half leaf 201, which is used to lift the baffle plate 204 when the lower half leaf 202 descends.
[0057] With this technical solution, when the lower half-leaf 202 descends as a whole under the action of the adjustment mechanism 4, the bottom arc-shaped front end 205 of the baffle 204 will contact the upper surface of the arc-shaped contact block 206 and slide relative to it. Under the arc-shaped guidance of the contact surface, one end of the baffle 204 will be lifted upward with the rubber connecting piece 203 as the axis, so that it will be separated from the surface of the upper half-leaf 201, forming an additional ventilation gap, which plays a role in further improving the airflow capacity and reducing wind resistance in the ventilation mode.
[0058] Preferably, in order to maintain the stable posture of the baffle 204 after it is raised and reduce vibration, a magnetic sheet is provided inside the baffle 204, and the arc-shaped contact block 206 is made of magnetic metal material. Through magnetic adsorption, the baffle 204 is relatively stably adsorbed to the side of the arc-shaped contact block 206 in ventilation mode, so as to prevent it from shaking and generating noise or affecting airflow.
[0059] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.
[0060] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. Waterproof cabinet louvers, characterized in that: include: A frame component (1) is provided with a plurality of louver components (2) on its inner side, and the plurality of louver components (2) are arranged vertically at equal intervals. The louver assembly (2) includes an upper half-leaf (201) and a lower half-leaf (202), wherein the upper half-leaf (201) and the lower half-leaf (202) are arranged alternately; An exhaust mechanism (3) is also fixedly connected to one side of the frame assembly (1).
2. The waterproof cabinet louver according to claim 1, characterized in that: One end of the upper half leaf (201) is arranged at an angle downward, and a semi-circular guide vane (2011) is fixedly provided at the other end of the upper half leaf (201). One end of the lower half (202) is arranged at an angle upward, and the other end of the lower half (202) is fixedly provided with an arc-shaped guide vane (2021).
3. The waterproof cabinet louver according to claim 2, characterized in that: The semi-circular guide vane (2011) and the arc-shaped guide vane (2021) are arranged alternately.
4. The waterproof cabinet louver according to claim 2, characterized in that: A flow guide hole (2022) is provided at the lowest point near the root of the arc-shaped flow guide plate (2021) of the lower half leaf (202).
5. The waterproof cabinet louver according to claim 4, characterized in that: One end of a rubber connecting piece (203) is fixedly connected to the bottom surface of the lower half leaf (202), and the other end of the rubber connecting piece (203) is fixedly connected to a baffle plate (204). An arc-shaped front end (205) is fixedly provided at the bottom end of the baffle plate (204).
6. The waterproof cabinet louver according to claim 1, characterized in that: The exhaust mechanism (3) includes a shroud (301) and an exhaust fan (302). The exhaust fan (302) is fixedly installed at one end of the shroud (301) to actively exhaust the hot air inside the cabinet.
7. The waterproof cabinet louver according to claim 5, characterized in that: An adjustment mechanism (4) is also provided at the louver assembly (2), the adjustment mechanism (4) including a fixed sleeve (402), a support guide rod (403) and an electric push rod (404). Both sides of the fixed sleeve (402) are fixedly connected to a fixed rod (401). A support guide rod (403) is slidably connected to the fixed sleeve (402), and the support guide rod (403) is fixedly connected to one end of the lower half leaf (202).
8. The waterproof cabinet louver according to claim 7, characterized in that: One end of the support guide rod (403) is fixedly connected to the output end of the electric push rod (404).
9. The waterproof cabinet louver according to claim 5, characterized in that: An arc-shaped contact block (206) is also fixedly connected to the upper surface of the upper half leaf (201).
10. The waterproof cabinet louver according to claim 9, characterized in that: The shield (204) is provided with a magnetic sheet inside, and the arc-shaped contact block (206) is made of magnetic metal material.